condition	mean	min	max
4 h after light	24860.678333333333	23530.43667	27482.075
8 h after light	21955.32278	21250.40667	22993.01667
12 h after light	16648.23778	15874.45667	17873.5
1.5 h after dark	12798.113333333335	11566.49667	13921.55333
5.5 h after dark	13074.657776666667	11992.08	13751.93
9.5 h after dark	17751.364443333332	14338.81667	20442.65333